associate justice stephen breyer, "making our democracy work." time now for "ac 360" and time now for "ac 360" and anderson cooper. -- captions by vitac -- www.vitac.com >>> tonight, the explosion, the fire, the death and destruction. new evidence it might have been prevented. we've learned a california utility knew a gas pipeline was aging, planned to upgrade a portion of it, even charged their customers to do the work but that work never got done. we're keeping them honest. also tonight, christine o'donnell's stunning upset in delaware's senate race, the tea party's growing power, and why today so many republican party leaders who lined up against her before the primary are now saying they're embracing her. at least in public. congressman ron paul joins us live. >>> and later why pennsylvania's governor is so embarrassed it comes down to this question, how would you feel if you found out government was spying on you, reporting you to local police as a potential threat just because you were taking part in a peaceful protest? it happened in penns